#include <bits/stdc++.h>

using namespace std;

char lowercaseToUppercase(char character)
{
    // write your code here
    char diff = 'a' - 'A';
    return character - diff;
}

int main()
{
    printf("%c\n", lowercaseToUppercase('a'));
    return 0;
}

/**
大小写转换
*/
